Hallo!
Ich versuche, den oben genannten Operationsverstärker in Spice reinzubekommen. Ich habe die Subcircuit Zuordnung des Modells, das ich als Spice-Kommando in das ASC-File gehängt habe, an das OPV Symbol opasym2 angepasst.
Bei der Simulation bekomme ich keine Fehler, aber wenn ich das unten eingehängte ASC-File simuliere (nicht invertierender Verstärker mit der Verstärkung 1) bekomme ich unrealistische Ergebnisse.
Eingangsspannung 100mV, Ausgangsspannung 65mV, Eingangsstrom positiver Eingang unter 1fA, sollte aber so 3 bis 10fA sein. Eingangsstrom invertierender Eingang 0,4mA, sollte im fA Bereich sein.
Die Spice-Simulationsparameter habe ich so wie im Modellkommentar empfohlen angepasst (Gmin RelTol).
Wo ist mein Fehler?
Danke für Eure Hilfe!!!
Vielen Dank im Vorhinein, liebe Grüße, Harald Noack
##################################################################################
Version 4 SHEET 1 1216 7808 WIRE 800 720 736 720 WIRE 928 720 880 720 WIRE 896 816 880 816 WIRE 896 832 896 816 WIRE 800 880 800 816 WIRE 736 896 736 720 WIRE 768 896 736 896 WIRE 928 912 928 720 WIRE 928 912 832 912 WIRE 976 912 928 912 WIRE 768 928 720 928 WIRE 800 1008 800 944 WIRE 896 1008 880 1008 WIRE 720 1024 720 1008 WIRE 896 1024 896 1008 FLAG 896 832 0 FLAG 896 1024 0 FLAG 720 1024 0 SYMBOL Opamps\\opamp2 800 848 R0 WINDOW 38 20 94 Left 0 SYMATTR InstName U1 SYMATTR Value "" SYMATTR SpiceModel LMP7721 SYMBOL voltage 896 1008 R90 WINDOW 0 -32 56 VBottom 0 WINDOW 3 32 56 VTop 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 2.5V SYMBOL voltage 784 816 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 -32 56 VBottom 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 2.5V SYMBOL voltage 720 912 R0 WINDOW 0 32 56 VTop 0 WINDOW 3 -32 56 VBottom 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value 0.1V SYMBOL res 896 704 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 10R TEXT -56 16 Left 0 !* BEGIN MODEL LMP7721\n* Rev.A March-2008\n* 5-May-10 Corrected pinout order header
-PG\n*//////////////////////////////////////////////////////////////////////\n* (C) National Semiconductor, Corporation.\n* Models developed and under copyright by:\n* National Semiconductor, Corporation. \n*/////////////////////////////////////////////////////////////////////\n* Legal Notice: \n* The model may be copied, and distributed without any modifications;\n* however, reselling or licensing the material is illegal.\n* We reserve the right to make changes to the model without prior notice. \n* PSPICE Models are provided "AS IS, WITH NO WARRANTY OF ANY KIND" \n*////////////////////////////////////////////////////////////////////\n* MODEL FEATURES INCLUDE OUTPUT SWING, OUTPUT CURRENT THRU THE SUPPLY RAILS,\n* OUTPUT CURRENT LIMIT, OPEN LOOP GAIN AND PHASE WITH RL AND CL EFFECTS, SLEW \n* RATE, COMMON MODE REJECTION WITH FREQ EFFECTS, POWER SUPPLY REJECTION WITH\n* FREQ EFFECTS, INPUT VOLTAGE NOISE WITH 1/F, INPUT CURRENT NOISE, INPUT BIAS \n* CURRENT, INPUT BIAS CURRENT TEMPERATURE EFFECTS, INPUT COMMON MODE RANGE, \n* INPUT OFFSET VOLTAGE WITH TEMPERATURE EFFECTS, AND QUIESCENT CURRENT VS\n* VOLTAGE AND TEMPERATURE.\n*///////////////////////////////////////////////////////////////////////////////\n* MODEL TEMP RANGE IS -40 TO +125 DEG C. NOTE THAT MODEL IS FUNCTIONAL OVER THIS \n* RANGE BUT NOT ALL PARAMETERS TRACK THOSE OF THE REAL PART\n*///////////////////////////////////////////////////////////////////////////////\n* PINOUT ORDER +IN -IN +V -V OUT\n* PINOUT ORDER 1 8 6 3 4\n.SUBCKT LMP7721 1 2 3 4 5\n*\n* USE V44 BELOW TO ADJUST OFFSET\n* PRESENT VALUE OF
248.7 UV GIVES 26 UV NET\n* NOTE THAT VOS CHANGES VIA CMRR,PSRR, AND TCVOS\n* ADJUST UP OR DN FROM 248.7 UV\nV44 26 11 248.7E-6\n*\n* USE R325 BELOW TO ADJUST BIAS CURRENT\n* PRESENT VALUE OF 1E7 GIVES TYPICAL IB\n* USE 1E8 FOR WORST CASE IB\nR325 0 100 1E7\n*\n* NOTE\n* USE ANALYSIS OPTION GMIN OF 1E-13 TO 1E-15 AND\n* RELTOL = 0.00001 TO 0.000001 FOR ACCURATE INPUT\n* BIAS CURRENT\n*\n* MODEL FEATURES INCLUDE OUTPUT SWING, OUTPUT CURRENT THRU\n* THE SUPPLY RAILS, OUTPUT CURRENT LIMIT, OPEN LOOP GAIN\n* AND PHASE WITH RL AND CL EFFECTS, SLEW RATE, COMMON MODE\n* REJECTION WITH FREQ EFFECTS, POWER SUPPLY REJECTION WITH\n* FREQ EFFECTS, INPUT VOLTAGE NOISE WITH 1/F, INPUT CURRENT\n* NOISE, INPUT BIAS CURRENT, INPUT BIAS CURRENT TEMPERATURE\n* EFFECTS, INPUT COMMON MODE RANGE, INPUT OFFSET VOLTAGE\n* WITH TEMPERATURE EFFECTS, AND QUIESCENT CURRENT VS\n* VOLTAGE AND TEMPERATURE.\n*\nD17 6 0 DIN\nD18 7 0 DIN\nI14 0 6 0.1E-3\nI15 0 7 0.1E-3\nD19 8 0 DVN\nD20 9 0 DVN\nI16 0 8 0.1E-3\nI17 0 9 0.1E-3\nE15 10 4 8 9 0.7\nG5 11 10 6 7 1.1E-14\nE16 12 0 13 0 1\nE17 14 0 15 0 1\nE18 16 0 17 0 1\nR56 12 18 1E6\nR57 14 19 1E6\nR58 16 20 1E6\nR59 0 18 10\nR60 0 19 10\nR61 0 20 10\nE19 21 22 20 0 1.4\nR62 23 17 1E3\nR63 17 24 1E3\nC15 12 18 1E-12\nC16 14 19 1E-12\nC17 16 20 10E-12\nE20 25 21 19 0 -6\nE21 26 25 18 0 6\nR64 0 27 1E12\nG12 11 10 28 0 1.1E-6\nR136 0 28 10E3\nR137 0 28 10E3\nR138 22 21 1E9\nR139 21 25 1E9\nR140 25 26 1E9\nE54 24 0 11 0 1\nE55 23 0 10 0 1\nC23 11 10 0.05E-12\nE57 22 3 29 0 8.45E-4\nR146 22 3 1E9\nR147 0 27 1E12\nQ41 30 31 15 QLN\nR148 31 32 1E3\nR149 33 34 1E3\nR150 35 13 5\nR151 15 36 5\nR153 37 38 200\nR154 39 13 5\nR155 15 40 5\nD22 41 5 DD\nD23 2 41 DD\nE58 15 0 2 0 1\nE59 13 0 5 0 1\nR156 2 5 10E6\nE67 42 15 13 15 0.5\nD24 43 13 DD\nD25 15 44 DD\nR157 45 46 100\nR158 47 48 100\nG14 37 42 49 42 0.1E-3\nR159 42 37 3.3E7\nC24 38 50 5.25E-12\nC25 41 0 0.5E-12\nD26 48 30 DD\nD27 51 46 DD\nQ42 51 34 13 QLP\nR160 41 52 1\nR161 53 41 1\nE61 54 42 55 56 1\nR162 54 49 1E4\nC26 49 42 0.3E-12\nG15 57 42 37 42 -1E-3\nG16 42 58 37 42 1E-3\nG17 42 59 60 15 1E-3\nG18 61 42 13 62 1E-3\nD28 61 57 DD\nD29 58 59 DD\nR163 57 61 100E6\nR164 59 58 100E6\nR165 61 13 1E3\nR166 15 59 1E3\nR167 58 42 1E6\nR168 59 42 1E6\nR169 42 61 1E6\nR170 42 57 1E6\nG19 5 2 63 0 0.95E-3\nR171 42 49 1E9\nR172 45 13 1E9\nR173 15 47 1E9\nG20 62 60 27 0 0.1E-3\nL2 41 1 0.4E-9\nR175 41 1 400\nR176 62 13 1E8\nR177 15 60 1E8\nR178 36 48 1E8\nR179 35 46 1E8\nR180 0 27 1E9\nE99 13 33 13 35 1.9\nE100 32 15 36 15 6.5\nE124 50 0 41 0 1\nR219 37 50 3.3E9\nI30 0 64 1E-3\nD46 64 0 DD\nR278 0 64 10E6\nV27 64 29 0.65\nR279 0 29 10E6\nQ52 52 46 35 QOP\nQ53 53 48 36 QON\nQ54 60 60 40 QON\nQ55 62 62 39 QOP\nE144 13 45 13 61 1\nE145 47 15 59 15 1\nI33 0 65 1E-3\nD49 65 0 DD\nR287 0 65 10E6\nV130 65 66 1.2301\nR288 0 66 10E6\nE50 67 0 66 0 -1.75\nR289 0 67 10E6\nR290 68 67 10E6\nM3 68 69 0 0 NEN L=2U W=1000U\nG22 70 71 68 0 3E-6\nV32 72 0 1\nR791 72 69 1E6\nM4 69 27 0 0 NEN L=2U W=100U\nE51 37 44 42 15 0.7\nE52 43 37 13 42 0.7\nG23 5 0 52 41 1\nG24 2 0 41 53 -1\nV35 13 73 1\nM45 74 75 76 76 NEN L=3U W=3000U\nR293 76 77 1E4\nR294 74 13 1E6\nV36 13 76 1\nC110 13 73 1E-12\nE53 27 0 78 76 1\nV37 74 78 1.111E-6\nR295 76 78 1E12\nR296 73 13 1E6\nC111 77 76 3E-15\nC112 13 74 3E-15\nM20 79 80 76 76 NEN L=3U W=300U\nM21 75 79 76 76 NEN L=3U W=300U\nR297 79 13 1E4\nR298 75 13 1E4\nC113 13 79 55E-12\nC114 13 75 150E-12\nE154 81 37 27 0 30\nE155 82 42 27 0 -30\nV138 83 82 15\nV139 84 81 -15\nR300 81 0 1E12\nR301 82 0 1E12\nM12 42 84 37 85 PSW L=1.5U W=150U\nM13 37 83 42 86 NSW L=1.5U W=150U\nR302 85 0 1E12\nR303 86 0 1E12\nM14 77 73 13 13 PEN L=6U W=60U\nE156 87 76 77 76 -1\nR304 76 87 10E6\nR305 76 87 10E6\nV40 80 87 1\nR306 76 80 10E6\nM55 88 89 2 2 NEN L=2U W=1000U\nR809 88 5 100E3\nE37 89 2 27 0 3\nM56 63 90 0 0 NEN L=2U W=10M\nR811 63 67 850E3\nE60 91 0 27 0 -1\nR312 0 91 10E6\nR313 0 91 10E6\nV43 90 91 1\nR814 0 90 10E6\nG25 5 2 27 0 -0.33E-3\nG26 5 2 92 0 0.7E-4\nE161 93 0 5 2 1\nM57 92 90 0 0 NEN L=2U W=10M\nR815 92 93 75E3\nR317 4 10 1E9\nR319 94 56 2E3\nR320 94 55 2E3\nC47 56 55 1.2E-12\nM58 56 95 96 96 PIN L=3U W=650U\nM59 55 97 98 98 PIN L=3U W=650U\nQ58 99 70 71 QPI\nR321 11 95 40\nR322 10 97 40\nR323 96 99 1\nR324 98 99 1\nV145 13 71 0.2\nV46 94 15 0\nD50 100 101 DL\nV47 101 0 3\nG51 10 0 100 0 1.6E-11\nI61 10 0 1E-15\nG52 11 0 100 0 1.6E-11\nI62 11 0 1E-15\nJ1 102 95 102 JC\nJ2 95 103 95 JC\nJ3 102 97 102 JC\nJ4 97 103 97 JC\nV48 13 102 0.48\nV49 103 15 0.15\nG53 104 3 104 3 2.5E-13\nG54 104 4 104 4 2.5E-13\nV146 104 15 1\n.MODEL DL D IS=0.95E-11 N=1.9 XTI=1.5\n.MODEL JC NJF IS=1E-18\n.MODEL QPI PNP\n.MODEL QON NPN RC=5\n.MODEL QOP PNP RC=5\n.MODEL DD D\n.MODEL DVN D KF=2.5E-15\n.MODEL DIN D KF=8E-17\n.MODEL QLN NPN\n.MODEL QLP PNP\n.MODEL PIN PMOS KP=200U VTO=-0.7\n.MODEL NIQS NMOS KP=200U VTO=0.7 IS=1E-18\n.MODEL NEN NMOS KP=200U VTO=0.5 IS=1E-18\n.MODEL PEN PMOS KP=200U VTO=-0.7 IS=1E-18\n.MODEL PSW PMOS KP=200U VTO=-7.5 IS=1E-18\n.MODEL NSW NMOS KP=200U VTO=7.5 IS=1E-18\n.ENDS\n* END MODEL LMP7721 TEXT -58 7792 Left 0 !.tran 0 2 1 100u